private void dgvSpeciality_SelectionChanged(object sender, EventArgs e)
{
cbSpeciality.DataSource = null;
cbSpeciality.DataBindings.Clear();
cbSpeciality.DataBindings.Add("text", dsKhoa, "MaKhoa");
txtSpecialistName.DataBindings.Clear();
txtSpecialistName.DataBindings.Add("text", dsKhoa, "TenKhoa");
lblMaKhoa.Text = cbSpeciality.Text;
cbSpeciality.DataSource = dsKhoa;
cbSpeciality.ValueMember = "MaKhoa";
cbSpeciality.DisplayMember = "MaKhoa";
int count;
lblNumberStudent.Text = (count = SVienData.CountNumberStudent(cbSpeciality.Text.ToString())) != 0 ?
"Khoa " + txtSpecialistName.Text + " có " + count + " sinh viên" : "Chưa có sinh viên";
}
public void GetAll(string type = null)
{
if (type == null)
{
dsKhoa = KhoaData.FindAll();
}
else
{
dsKhoa = KhoaData.FindNotStudentEnroll();
}
if (dsKhoa != null)
{
dgvSpeciality.DataSource = dsKhoa;
dgvSpeciality.Columns["NamThanhLap"].Visible = false;
dgvSpeciality.Columns["TuyenSinh"].Visible = false;
lblNumber.Text = "Có " + dsKhoa.Count + " khoa";
cbSpeciality.DataSource = null;
cbSpeciality.DataBindings.Clear();
txtSpecialistName.DataBindings.Clear();
cbSpeciality.DataBindings.Add("text", dsKhoa, "MaKhoa");
txtSpecialistName.DataBindings.Add("text", dsKhoa, "TenKhoa");
cbSpeciality.DataSource = dsKhoa;
cbSpeciality.ValueMember = "MaKhoa";
cbSpeciality.DisplayMember = "MaKhoa";
dgvSpeciality.Visible = true;
lblSpeciality.Visible = false;
int count;
lblNumberStudent.Text = (count = SVienData.CountNumberStudent(cbSpeciality.Text.ToString())) != 0 ?
"Khoa " + txtSpecialistName.Text + " có " + count + " sinh viên" : "Chưa có sinh viên";
}
else
{
dgvSpeciality.Visible = false;
lblSpeciality.Visible = true;
lblSpeciality.Text = "Chưa có khoa";
cbSpeciality.DataBindings.Clear();
txtSpecialistName.DataBindings.Clear();
cbSpeciality.Text = string.Empty;
cbSpeciality.DataSource = null;
txtSpecialistName.Text = string.Empty;
lblNumber.Text = "Chưa có khoa";
lblNumberStudent.Text = "Chưa có sinh viên";
}
}
